| To: | Manfred Spraul <manfred@xxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 2.6] natsemi.c NAPI |
| From: | jamal <hadi@xxxxxxxxxx> |
| Date: | 28 Sep 2004 06:39:44 -0400 |
| Cc: | Harald Welte <laforge@xxxxxxxxxxxx>, netdev@xxxxxxxxxxx |
| In-reply-to: | <4158E74C.7030709@xxxxxxxxxxxxxxxx> |
| Organization: | jamalopolous |
| References: | <20040919163642.GC1307@xxxxxxxxxxxxxxxxxxxxxxx> <4155D781.8050700@xxxxxxxxxxxxxxxx> <20040927081411.GC3236@xxxxxxxxxxxxxxxxxxxxxxx> <1096343829.8660.107.camel@xxxxxxxxxxxxxxxx> <4158E74C.7030709@xxxxxxxxxxxxxxxx> |
| Reply-to: | hadi@xxxxxxxxxx |
| Sender: | netdev-bounce@xxxxxxxxxxx |
On Tue, 2004-09-28 at 00:23, Manfred Spraul wrote: > jamal wrote: [..] > >Does this mean that the interupt clears when read? > >Why would reading a NIC register clear a soundcard interupt? > > > > > > > No, of course not. But each soundcard interrupt would cause a > netif_rx_schedule, with the following callback from tasklet context. > IMHO the overhead of that operation is too large. Additionally it breaks > the stuck irq detection. Ok, In such a case it is advised that a e1000 style NAPI is used (as opposed to the tulip varinat). Sorry, I should actually read the code first - I ma hoping i am in context here. cheers, jamal |
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